Same ISP, differect location?

I’ve noticed that CF seems to route things differently in some instances. For example:

fl=26f154
h=geekzone.co.nz
ip=
ts=1656111365.796
visit_scheme=https
uag=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.53 Safari/537.36 Edg/103.0.1264.37
colo=SYD
http=http/3
loc=NZ
tls=TLSv1.3
sni=plaintext
warp=off
gateway=off

fl=481f1
h=slashdot.org
ip=
ts=1656111395.866
visit_scheme=https
uag=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.53 Safari/537.36 Edg/103.0.1264.37
colo=CHC
http=http/3
loc=NZ
tls=TLSv1.3
sni=plaintext
warp=off
gateway=off

fl=481f2
h=mitre10.co.nz
ip=
ts=1656111877.198
visit_scheme=https
uag=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.53 Safari/537.36 Edg/103.0.1264.37
colo=CHC
http=http/2
loc=NZ
tls=TLSv1.3
sni=plaintext
warp=off
gateway=off

These traces are from the same computer, one after another. Both traces on the same ISP.

One connects to CHC (a new location) and the other one goes to SYD.

Why wouldn’t both go to CHC (closer)? Why would one connection decide to go to SYD, which is a long way compared to CHC (or even the existing AKL)?

Why would one domain be directed to another country?

I’ve noticed the ones going to CHC don’t have AAAA records - perhaps enterprise accounts (mine is a Business account)?

Traffic to Cloudflare may be routed around any of their data-centers depending on load, availability, routes from user’s ISPs, etc. Some locations can be thought of as more “premium” and traffic will be prioritised on these to higher tier plans, but any plan can hit them, it all just depends on what’s happening in the entire network, and is constantly evolving and changing.

It’s not something I’d overly worry about unless you’re seeing increased error rates or something from a particular location. :+1:

Thanks. No, there’s no increase in errors or (long) delays introduced (although the distance Wellington - Christchurch is 305 Kms and Wellington - Sydney is 2250 Kms). Just curious why the difference in a small country like ours.

Oh well. Turned Argo on again and my site is going through CHC (NZ) instead SYD (AU) now.

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